0963_A_SEA CHEST AND MARINE GROWTH PROTECTION (5YR)_TAOE_CCSI.docx

USNS ARCTIC

(T-AOE 8)

SEA CHEST AND MARINE GROWTH PROTECTION (2.5 YR)

ABSTRACT:

1.1. This item describes the inspection of the Cathelco anode type marine growth inhibitor system in all sea chests.

REFERENCES:

1.2. Cathelco Drawing 105559M/68433

1.3. MSC Drawing Nr. 8498021 USNS Arctic Sea Chest Protection System Arrangement and Details

ITEM LOCATION/DESCRIPTION:

1.4. Locations:

1.4.1. MMR 1.

1.4.2. MMR 2.

1.4.3. JP5 Pump Room

1.4.4. AMR Pump Room.

1.5. Description:

1.5.1. MMR 1.

a. Central SW Cooling Pump No's 1 & 2, Hi & Low Suctions.

b. SSDG SW Cooling Pump No's 3 & 5, High & Low Suctions.

c. Evaporator No’s 1 Feed Pump Suction.

d. Fire Pump 5 & 6 Suction.

1.5.2. MMR 2.

a. Central SW Cooling Pump No's 3 & 4, High & Low Suctions.

b. SSDG SW Cooling Pump No's 2 & 4, High & Low Suctions.

c. Evaporator No’s 2 Feed Pump Suction.

d. Fire Pump 7 & 8 Suction.

1.5.3. JP5 Pump Room.

a. Fire Pump 3 & 4 Suction.

1.5.4. AMR Pump Room.

a. Fire Pump 1 & 2 Suction.

b. SSDG SW Cooling Pump No 1 Suction.

c. AC SW Cooling Pumps No's 1, 2 & 3, Port & Starboard Suctions.

GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICES: None

NOTES:

1.6. The contractor and all subcontractors, regardless of tier, must consult the General Technical Requirements to determine applicability to this Work Item. In performance of this Work Item, the contractor and all subcontractors, regardless of tier, must comply with the requirements of all applicable GTR’s.

1.7. The contractor and all subcontractors, regardless of tier, are advised to review all other Work Items under this contract to determine their effect on the work required under this Work Item. Many of the definitions relating to performance of this work item are found in Work Item 001.

1.8. This item must be performed while in dry dock due to the penetration of the sea chests.

1.9. Each anode uses the same Flange Mounting Sleeve however the anode varies according to the sea chest.

QUALITY ASSURANCE REQUIREMENTS: None Additional

STATEMENT OF WORK REQUIRED:

1.10. Perform and operational inspection of the system prior to the ship going into Dock.

1.10.1. Provide an as found condition report noting findings to MSCREP.

1.11. Once ship is docked and the sea chest are opened and cleaned. Perform a visual inspection of the anodes to determine anode consumption and estimate of remaining life.

1.11.1. Anodes having less than 2.5 years of operational life or other abnormalities shall be recommended for replacement.

a. For bidding purposes assume that five anodes will require replacements. Replacements anodes will be provided by the government.

1.12. With the assistance of ship’s force. Tag-out and Lock-Out system prior to entering dock.

1.13. At the completion of the inspection wrap and protect anodes so that they will not be affected by preservation and repair efforts on the sea chests.

1.13.1. Remove protective measures and perform visual and electrical checks on the anodes prior to undocking.

1.14. Once anodes are submersed lite-off system and adjust current to each anode. Verify proper operation of the system.

1.14.1. Provide As-released report to MSCREP following waterborne inspection and adjustments of system. Report shall provide list anodes that were replaced if any.

1.15. Manufacturer's Representative: Provide the services of an authorized OEM representative for inspection and repair.

GENERAL REQUIREMENTS: None Additional 0963 - 4